Shell assembly and ceiling electric appliance with same

Abstract

The utility model provides a shell assembly and a ceiling electric appliance with the same, and relates to the technical field of volutes. The shell assembly comprises a shell and a spliced volute, the shell is provided with a volute side plate used for forming an air duct, the shell is provided with an air outlet communicating with the air duct, and the volute side plate is provided with an opening; the spliced volute is movably connected with the shell, so that the spliced volute is provided with a blocking position which moves towards one side of the air outlet to the opening so as to block the opening, and the spliced volute is provided with an avoiding position which moves away from one side of the air outlet to one side of the opening; when the spliced volute is located at the blocking position, at least part of the spliced volute protrudes out of the outer side of the opening, and the problem that in the prior art, the size of the volute is limited, and consequently the air volume in the volute is reduced is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a volute technical field, specifically, a kind of shell assembly and ceiling appliance with it.The utility model requires the priority of the patent application of "shell assembly and ceiling appliance with it" that is submitted to China State Intellectual Property Bureau on July 26, 2024, application number is 2024217966210, utility model name. BACKGROUND

[0002] The bath heater is a common indoor heating device, its main function is to improve the temperature of bathroom by heating air. The bath heater is usually composed of a box body, a fan, a volute and the like, wherein the size of the box body directly affects the size of the fan and the volute, and further affects the performance of the bath heater. In the traditional bath heater design, the size of the box body is limited by the size of the ceiling batten and the width of the keel, so that the size of the bath heater shell in the prior art has been maximized. If the size of the shell is further increased to increase the air volume of the bath heater, it will inevitably cause the bath heater shell to be too large to be installed through the installation opening formed on the ceiling batten (a national standard structural part) or to be installed through the keel formed on the ceiling batten or large plate. Based on the problems existing in the prior art, the air volume of the bath heater is always at a low level, which cannot meet the requirements of the use environment with large air volume, so that the practicability of the bath heater in the prior art is not high.

[0003] Based on the problems existing in the prior art, there is no good solution at present. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a shell assembly and ceiling appliance with it, to solve the problem of reduced air volume in the volute due to the limited size of the volute in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a shell assembly is provided. The shell assembly comprises: a shell, the shell has an air duct structure, the air duct structure comprises a volute side plate, the volute side plate is provided with an opening; a spliced volute, the spliced volute is movably connected with the shell, so that the spliced volute has a blocking position for blocking the opening, and the spliced volute has an avoiding position for moving outward of the opening; wherein, when the spliced volute is in the blocking position, at least part of the spliced volute is arranged outward of the opening.

[0006] Further, when the spliced volute is in the avoiding position, the spliced volute is arranged outward of the shell.

[0007] Further, the shell assembly further comprises: a guide assembly, the guide assembly is connected with the shell, the spliced volute is movably connected with the guide assembly, and the spliced volute moves to the blocking position and the avoiding position through the guide assembly.

[0008] Furthermore, one end of the guide assembly is located inside the housing, and the other end of the guide assembly extends to the outside of the housing.

[0009] Furthermore, the first end of the spliced ​​volute is an arc-shaped plate structure, and the second end of the spliced ​​volute has an air guide groove that is recessed towards the outside of the shell.

[0010] Furthermore, the splicing volute includes: a first component segment, which is movably connected to the guide assembly and has an air guide groove; and a second component segment, the first end of which is connected to the first component segment and is an arc-shaped plate structure; wherein, when the splicing volute is in the blocking position, the first component segment is positioned to protrude outward from the opening, and the second component segment is connected to one end of the volute side plate.

[0011] Furthermore, the first segment includes: a splicing body, which is connected to the second segment; and a slider, which is disposed on the side of the splicing body facing the opening and is slidably connected to the guide component.

[0012] Furthermore, the splicing body includes: an outer plate, which is connected to one end of the second component segment, and the outer plate protrudes outward from the outside of the opening; and side plates, which are at least two, which are disposed on both sides of the outer plate and are disposed opposite to each other, with at least one side plate connected to a slider, and the at least two side plates and the outer plate forming an air guide channel.

[0013] Furthermore, the guide assembly includes: a first guide member disposed at a partial opening; a second guide member, one end of which is connected to the first guide member and disposed at an angle, and the other end of which extends to the outside of the housing; when the splicing volute is in the blocking position, the first component segment is slidably connected to the first guide member, and when the splicing volute is in the avoidance position, the first component segment is slidably connected to the second guide member.

[0014] Furthermore, there are at least two sliders, including a first slider and a second slider. The first slider is located at the end of the side plate away from the second component section, and the second slider is located at the end of the side plate close to the second component section. When the splicing volute is in the blocking position, the first slider is located inside the end of the guide assembly close to the air outlet. When the splicing volute is in the avoidance position, the second slider is located inside the end of the guide assembly away from the air outlet.

[0015] Furthermore, the outer panel and side panels are integrally molded.

[0016] According to another aspect of the present invention, a ceiling electrical appliance is provided, including a housing assembly, which is the housing assembly described in the above embodiment.

[0017] By applying the technical solution of this utility model, a splicing volute is added to the opening of the housing. The splicing volute is used to increase the capacity of the air duct, thereby increasing the air volume. By setting the splicing volute and the housing to be movably connected, the splicing volute has a blocking position for blocking the opening and a yielding position for avoiding the opening. The setting of the protruding part structure allows the splicing volute in the blocking position to expand the capacity of the air duct, thereby increasing the air volume. The splicing volute in the yielding position saves the installation space required for the housing assembly. That is, by switching the splicing volute between the yielding position and the blocking position, the installation flexibility of the housing assembly is improved. When the splicing volute is in the blocking position, at least part of the splicing volute protrudes outside the opening. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of the structure of a first embodiment of the housing assembly according to the present invention is shown;

[0020] Figure 2 A schematic diagram of the structure of a second embodiment of the housing assembly according to the present invention is shown;

[0021] Figure 3 A schematic diagram of an embodiment of a spliced ​​volute housing according to the present invention is shown;

[0022] Figure 4 A schematic diagram of a third embodiment of the housing assembly according to the present invention is shown;

[0023] Figure 5 It shows Figure 4 Enlarged structural diagram at point A;

[0024] Figure 6 A schematic diagram of the structure of a fourth embodiment of the housing assembly according to the present invention is shown;

[0025] Figure 7 It shows Figure 6 A magnified structural diagram at point B in the middle.

[0026] The above figures include the following reference numerals:

[0027] 1. Shell;

[0028] 11. Air duct structure;

[0029] 12. Volute side plates;

[0030] 13. Air vent;

[0031] 14. Opening;

[0032] 2. Assemble the volute shell;

[0033] 21. First section;

[0034] 211. Assembly body; 2111. Outer panel; 2112. Side panel;

[0035] 212, slider; 2121, first slider; 2122, second slider;

[0036] 22. The second section;

[0037] 3. Air guide duct;

[0038] 4. Guide assembly; 41. First guide component; 42. Second guide component. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0042] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0043] It should be noted that the housing component in this application is primarily designed for the volute of a bathroom heater / ventilation unit. A bathroom heater / ventilation unit is a common indoor heating device whose main function is to raise the temperature of the bathroom by heating the air. A bathroom heater / ventilation unit typically consists of a housing, a fan, and a volute. The size of the housing directly affects the size of the fan and the volute, thus impacting the performance of the unit. In traditional bathroom heater / ventilation unit designs, the size of the housing is limited by the size of the ceiling panels and the width of the joists, resulting in a smaller volute and lower airflow, which restricts the performance improvement of the unit.

[0044] Combination Figures 1 to 7 As shown, according to a specific embodiment of the present invention, a housing assembly is provided.

[0045] Specifically, such as Figure 1 , Figure 2 As shown, the housing assembly includes a housing 1 and a spliced ​​volute 2. The housing 1 has an air duct structure 11, which includes a volute side plate 12 with an opening 14. The spliced ​​volute 2 is movably connected to the housing 1, such that the spliced ​​volute 2 has a blocking position that seals the opening 14, and a clearance position that moves outward from the opening 14. When the spliced ​​volute 2 is in the blocking position, at least a portion of the spliced ​​volute 2 protrudes outward from the opening 14.

[0046] In this embodiment, a splicing volute 2 is added at the opening 14 of the housing 1. The splicing volute 2 is used to increase the capacity of the air duct structure 11, thereby increasing the air volume. By setting the splicing volute 2 and the housing 1 to be movably connected, the splicing volute 2 has a blocking position for blocking the opening 14 and a yielding position for avoiding the opening 14. The setting of the protruding part structure allows the splicing volute 2 in the blocking position to expand the capacity of the air duct structure 11, thereby increasing the air volume. The splicing volute 2 in the yielding position saves the installation space required for the housing assembly. By switching the splicing volute 2 between the yielding position and the blocking position, the installation flexibility of the housing assembly is improved. When the splicing volute 2 is in the blocking position, at least a part of the splicing volute 2 is set to protrude outside the opening.

[0047] It should be noted that the air duct structure 11 includes a volute side plate 12 and an air supply duct. The air supply duct is located downstream of the volute side plate and is connected to the air outlet 13.

[0048] In one embodiment of this application, the air duct structure 11 further includes an air duct top plate and an air duct bottom plate. The volute side plate 12, the air duct top plate, and the air duct bottom plate surround the shell 1, that is, the air duct structure 11 is a part of the shell 1, and the air duct bottom plate is formed from the bottom of the shell 1. The profile of the volute side plate 12 can be a volute profile, or the profile of the volute side plate 12 can be a profile structure including straight lines and curved lines.

[0049] In another embodiment of this application, the air duct structure 11 includes a volute side plate 12, an air duct top plate, and an air duct bottom plate. The air duct structure 11 and the housing 1 form a separate assembly component, that is, the air duct structure 11 is part of the housing 1, and the bottom of the housing 1 forms the air duct bottom plate. Of course, the air duct structure 11 can also be independently formed inside the housing 1. In this case, the air duct bottom plate of the air duct structure 11 is connected to the bottom of the housing 1. The difference between this embodiment and the above embodiment is that both the air duct structure 11 and the housing 1 have their own bottom plates.

[0050] like Figure 6 As shown, when the splicing volute 2 is in the avoidance position, it is located on the outside of the housing 1. This arrangement avoids the splicing volute 2, which is in the avoidance position, from being exposed at the air outlet 13 and causing interference, thus preventing installation inconvenience. It also reduces the overall installation space required for the housing assembly.

[0051] Furthermore, the housing assembly also includes a guide component 4. The guide component 4 is connected to the housing 1, and the splicing volute 2 is movably connected to the guide component 4. The splicing volute 2 moves to the blocking position and the avoidance position via the guide component 4. The splicing volute 2 is reciprocally movable along the length direction of the guide component 4, so that the splicing volute 2 can move to the blocking position and the avoidance position along the length direction of the guide component 4. By setting the guide component 4 to be movably connected to the splicing volute 2, the flexibility and convenience of the movement of the splicing volute 2 are improved, and the range of movement of the splicing volute 2 is further limited, so that the movement of the splicing volute 2 is controlled, and the sliding of the splicing volute 2 is more stable, and it is ensured that when it moves to the blocking position, it can accurately overlap and seal with the volute side plate 12.

[0052] Specifically, one end of the guide component 4 is located inside the housing 1, and the other end of the guide component 4 extends to the outside of the housing 1. This arrangement is to match the structure of the splicing volute 2. When the splicing volute 2 is in the blocking position, the splicing volute 2 is connected to the part of the guide component located inside the housing 1. When the splicing volute 2 is in the avoidance position, the splicing volute 2 is connected to the other part of the guide component 4 extending to the outside of the housing 1. At the same time, it avoids the splicing volute 2 in the avoidance position from being exposed at the air outlet 13 and causing interference, which would make it inconvenient for the air outlet 13 to discharge air.

[0053] To accommodate the shape of the volute side plate 12, the first end of the spliced ​​volute 2 is an arc-shaped plate structure, and the second end of the spliced ​​volute 2 has a guide groove 3 recessed towards the outside of the housing 1. This arrangement allows the first end of the spliced ​​volute 2 to fit the shape of the volute side plate 12. The arc-shaped volute structure increases the flow area of ​​the air duct structure 11, while the guide groove 3 further increases the flow area of ​​the air duct structure 11, thereby increasing the airflow.

[0054] like Figure 3 As shown, the spliced ​​volute 2 includes a first component segment 21 and a second component segment 22. The first component segment 21 is movably connected to the guide assembly 4 and has an air guide groove 3. The first end of the second component segment 22 is connected to the first component segment 21, and the second component segment 22 has an arc-shaped plate structure. When the spliced ​​volute 2 is in the sealed position, the first component segment 21 protrudes outward from the outside of the opening 14, and the second component segment 22 is connected to one end of the volute side plate 12. This arrangement helps to improve the sealing performance of the overall structure and reduce air leakage. This structural design enhances the overall stability of the volute and improves its ability to withstand pressure and load. The air guide groove 3 is used to increase the flow area of ​​the air duct structure 11, thereby increasing the air volume.

[0055] Furthermore, the first segment 21 includes a splicing body 211 and a slider 212. The splicing body 211 is connected to the second segment 22. The slider 212 is disposed on the side of the splicing body 211 facing the opening 14, and the slider 212 is slidably connected to the guide component 4. Through the cooperation of the slider 212 and the guide component 4, the splicing volute 2 can switch between a blocking position and an avoidance position. This configuration is simple and cost-effective.

[0056] like Figure 3As shown, the splicing body 211 includes an outer plate 2111 and side plates 2112. The outer plate 2111 is connected to one end of the second component segment 22 and protrudes outward from the opening 14. There are at least two side plates 2112, which are disposed on both sides of the outer plate 2111 and are arranged opposite to each other. At least one side plate 2112 is connected to a slider 212. The at least two side plates 2112 and the outer plate 2111 form an air guide channel 3. The air guide channel 3 formed by the two side plates 2112 and the outer plate 2111 helps to optimize the airflow path, increase the air volume, and improve the efficiency of airflow.

[0057] like Figure 3 As shown, the guide assembly 4 includes a first guide member 41 and a second guide member 42. The first guide member 41 is disposed at the partial opening 14. One end of the second guide member 42 is connected to the first guide member 41 and is disposed at an angle, while the other end of the second guide member 42 extends to the outside of the housing 1. When the splicing volute 2 is in the blocking position, the first component segment 21 is slidably connected to the first guide member 41; when the splicing volute 2 is in the avoidance position, the first component segment 21 is slidably connected to the second guide member 42. The first guide member 41 and the second guide member 42 are connected in communication, allowing the first component segment 21 to slide between the first guide member 41 and the second guide member 42, thereby switching the splicing volute 2 between the blocking position and the avoidance position.

[0058] In this embodiment, the first guide member 41 and the second guide member 42 are guide rails. The guide rails are provided with guide grooves. The slider 212 protrudes out and is embedded in the guide groove. The slider 212 is reciprocated in the guide groove to drive the splicing volute 2 to move between the avoidance position and the blocking position.

[0059] The shapes of the first guide member 41 and the second guide member 42 are not limited to these, nor is the shape of the corresponding slider 212. In other embodiments, the first guide member 41 and the second guide member 42 may be provided with protrusions, and the corresponding slider 212 may be provided with grooves, so as to achieve the adaptation of the first guide member 41, the second guide member 42 and the slider 212.

[0060] Furthermore, there are at least two sliders 212, including a first slider 2121 and a second slider 2122. The first slider 2121 is located at the end of the side plate 2112 away from the second component section 22, and the second slider 2122 is located at the end of the side plate 2112 close to the second component section 22. When the splicing volute 2 is in the blocking position, the first slider 2121 is located inside the end of the guide assembly 4 close to the air outlet 13. When the splicing volute 2 is in the avoidance position, the second slider 2122 is located inside the end of the guide assembly 4 away from the air outlet 13.

[0061] In this embodiment, the number of sliders 212 is set to two. In other embodiments, the number of sliders 212 is not limited to this and can be three, four, etc.

[0062] Specifically, Figure 4 This is a structural diagram showing the assembled volute when it is in the sealed position. Figure 5 for Figure 4 Enlarged structural diagram at point A. When the spliced ​​volute 2 is in the blocking position, the first slider 2121 is located at one end of the first guide member 41 (e.g., Figure 5 As shown), the second slider 2122 is located in the middle area of ​​the guide assembly 4.

[0063] Figure 6 This is a structural diagram showing the volute casing in an avoidance position. Figure 7 for Figure 6 Enlarged structural diagram at point B. When the splicing volute 2 is in the avoidance position, the splicing volute 2 slides along the length of the guide assembly 4 to the position of the second guide member 42. At this time, the second slider 2122 is located at one end of the second guide member 42 (e.g., Figure 7 As shown), the first slider 2121 is located in the middle area of ​​the guide assembly 4.

[0064] By securing the slider to the end of the guide assembly 4, when the splicing volute 2 is in the blocked position, this arrangement ensures a tight connection between the splicing volute 2 and the volute side plate 12, preventing air leaks at the connection point and ensuring optimal performance. When the splicing volute 2 is in the clearance position, this arrangement prevents it from sliding down or even falling under its own weight, thereby enhancing the structural stability of the splicing volute 2.

[0065] Furthermore, the outer panel 2111 and the side panel 2112 are integrally formed. This configuration improves the overall performance and quality of the splicing body 211 while reducing production costs.

[0066] According to another aspect of the present invention, a ceiling electrical appliance is provided, including a housing assembly, which is the housing assembly of the above embodiment. The housing assembly includes: a housing 1, the housing 1 having a volute side plate 12 for forming an air duct structure 11, and the housing 1 having an air outlet 13 communicating with the air duct structure 11, the volute side plate 12 having an opening 14; and a splicing volute 2, the splicing volute 2 being movably connected to the housing 1, such that the splicing volute 2 has a blocking position that moves toward the air outlet 13 to the opening 14 to block the opening 14, and a clearance position that moves away from the air outlet 13 to the side of the opening 14; wherein, when the splicing volute 2 is in the blocking position, at least a portion of the splicing volute 2 protrudes outward from the opening 14.

[0067] In this embodiment, by adding a splicing volute 2 at the opening 14 of the housing 1, the splicing volute 2 is used to increase the capacity of the air duct structure 11, thereby increasing the air volume. By setting the splicing volute 2 to be movably connected to the housing 1, the splicing volute 2 has a blocking position for blocking the opening 14 and a yielding position for avoiding the opening 14. When the splicing volute 2 is in the blocking position, it expands the capacity of the air duct structure 11, thereby increasing the air volume. When the splicing volute 2 is in the yielding position, it saves the longitudinal space of the housing. By switching the splicing volute 2 between the yielding position and the blocking position, the flexibility of the housing assembly is improved. When the splicing volute 2 is in the blocking position, at least a part of the splicing volute 2 is set outside the opening. The protruding part further increases the capacity of the air duct structure 11, thereby increasing the air volume and improving the performance of the ceiling electrical appliances.

[0068] Furthermore, a fan is installed inside the housing 1, and the fan is located at the end away from the air outlet 13.

[0069] Ceiling-mounted electrical appliances include, but are not limited to, kitchen air conditioners, non-kitchen air conditioners, bathroom heaters, and fresh air systems.

[0070] Ceiling electrical appliances also include a fan cover, a panel, and a lamp assembly. Specifically, a fan cover is provided on the side opposite to the duct base plate, a panel is provided on the outside of the fan cover, and the lamp assembly is provided on the side where the fan cover and the panel are located.

[0071] This application increases the airflow of the air duct structure 11 by setting up a spliced ​​volute 2 to accommodate a larger impeller within the duct structure 11, i.e., within the volute duct. The spliced ​​volute 2 can be connected to the housing 1 or to the volute side plate 12.

[0072] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0073] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0074] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0075] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A housing assembly, characterized in that, include: The housing (1) has an air duct structure (11), the air duct structure (11) includes a volute side plate (12), the volute side plate (12) has an opening (14); The splicing volute (2) is movably connected to the housing (1) so that the splicing volute (2) has a blocking position to block the opening (14) and a clearance position to move outward of the opening (14). When the splicing volute (2) is located at the blocking position, at least a portion of the splicing volute (2) protrudes outward from the outside of the opening (14).

2. The housing assembly according to claim 1, characterized in that, When the spliced ​​volute (2) is located in the avoidance position, the spliced ​​volute (2) is located on the outside of the housing (1).

3. The housing assembly according to claim 1 or 2, characterized in that, The housing assembly also includes: A guide assembly (4) is connected to the housing (1), and the splicing volute (2) is movably connected to the guide assembly (4). The splicing volute (2) is moved to the blocking position and the avoidance position through the guide assembly (4).

4. The housing assembly according to claim 3, characterized in that, One end of the guide assembly (4) is located inside the housing (1), and the other end of the guide assembly (4) extends to the outside of the housing (1).

5. The housing assembly according to claim 3, characterized in that, The first end of the spliced ​​volute (2) is an arc-shaped plate structure, and the second end of the spliced ​​volute (2) has an air guide groove (3) recessed towards the outside of the shell (1).

6. The housing assembly according to claim 5, characterized in that, The spliced ​​volute (2) includes: A first component segment (21) is movably connected to the guide assembly (4) and has the air guide groove (3); The second component segment (22) is connected at its first end to the first component segment (21), and the second component segment (22) is the arc-shaped plate structure. When the spliced ​​volute (2) is located at the blocking position, the first component section (21) protrudes out of the outside of the opening (14), and the second component section (22) is connected to one end of the volute side plate (12).

7. The housing assembly according to claim 6, characterized in that, The first component segment (21) includes: The splicing body (211) is connected to the second component segment (22); A slider (212) is disposed on the side of the splicing body (211) facing the opening (14), and the slider (212) is slidably connected to the guide component (4).

8. The housing assembly according to claim 7, characterized in that, The splicing body (211) includes: Outer plate (2111), the outer plate (2111) is connected to one end of the second component segment (22), and the outer plate (2111) is provided to protrude from the outside of the opening (14); Side plates (2112), there are at least two side plates (2112), at least two side plates (2112) are disposed on both sides of the outer plate (2111), and at least two side plates (2112) are disposed opposite to each other, at least one side plate (2112) is connected to the slider (212), and at least two side plates (2112) and the outer plate (2111) surround the air guide groove (3).

9. The housing assembly according to claim 3, characterized in that, The guiding component (4) includes: First guide component (41); The second guide (42) is connected to the first guide (41) and is arranged at an angle, with the other end of the second guide (42) extending to the outside of the housing (1).

10. The housing assembly according to claim 8, characterized in that, There are at least two sliders (212), each slider (212) including a first slider (2121) and a second slider (2122). The first slider (2121) is located at the end of the side plate (2112) away from the second component section (22), and the second slider (2122) is located at the end of the side plate (2112) close to the second component section (22). When the splicing volute (2) is in the blocking position, the first slider (2121) is located inside the end of the guide assembly (4) close to the air outlet (13). When the splicing volute (2) is in the avoidance position, the second slider (2122) is located inside the end of the guide assembly (4) away from the air outlet (13).

11. The housing assembly according to claim 8, characterized in that, The outer panel (2111) and the side panel (2112) are integrally formed.

12. A ceiling-mounted electrical appliance, comprising a housing assembly, characterized in that, The housing assembly is the housing assembly according to any one of claims 1 to 10.

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